秘ひ録ろく

noun

private records; secret notes; confidential papers

Refers to documents, notes, or records that are kept private, secret, or confidential, often with historical or personal significance.

• 彼かれは自じ分ぶんの体たい験けんを秘ひ録ろくとして残のこした。

  He left his experiences as private records.

• その事じ件けんに関かんする秘ひ録ろくが発はっ見けんされた。

  Secret notes concerning that incident were discovered.